Reaction medium reaction speed control system of closed space

Abstract

The invention discloses a reaction medium reaction speed control system of a closed space. The reaction medium reaction speed control system comprises a reaction container, a fixed sealing cylinder and a movable reaction rod, the movable reaction rod is movably inserted into the fixed sealing cylinder to extend into the reaction container; reaction medium outlet holes are distributed in the pipe wall of the lower half part of the pipe body of the movable reaction rod; an upper sealing part and a lower sealing part are embedded in the fixed sealing cylinder, a middle sealing part is embedded in the periphery of the movable reaction rod, and the space between the upper sealing part and the lower sealing part is divided by the middle sealing part to form an upper gas clamping cavity and a lower liquid clamping cavity; the pressure P2 in the upper gas clamping cavity is adjusted to be different from the pressure P1 in the reaction container, so that the movable reaction rod moves up and down through the pressure difference, and the number of the reaction medium outlet holes extending out of the fixed sealing cylinder is adjusted. The movable reaction rod is driven to move through the pressure difference between the reaction container and the upper gas clamping cavity, so that the number of outlet holes, extending out of the fixed sealing cylinder, of the reaction medium outlet hole is adjusted, and the reaction progress of the reaction medium in the closed space is effectively controlled.

Description

Technical Field

[0001] The invention belongs to the technical field of reaction medium reaction speed control, and in particular relates to a reaction medium reaction speed control system in a closed space. Background Art

[0002] When two or more reaction media react in a closed container, the pressure in the closed container will change. The intensity of the reaction is related to the amount of reaction medium added. When a large dose of reaction medium is added in a short period of time, the reaction cannot be effectively controlled, causing large fluctuations in the liquid level and affecting the measurement. In severe cases, out-of-control reactions may cause fires, explosions, secondary decomposition reactions, etc., posing a major safety hazard. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a reaction medium reaction speed control system in a closed space, which drives the movable reaction rod to move by the pressure difference between the reaction container and the upper air clamp chamber to adjust the number of outlet holes of the reaction medium extending out of the fixed sealing tube, thereby achieving effective control of the reaction progress of the reaction medium in the closed space.

[0004] Technical solution: To achieve the above-mentioned purpose, a reaction medium reaction speed control system of a closed space of the present invention comprises a reaction container, a fixed sealing cylinder and a movable reaction rod; the fixed sealing cylinder is arranged through the top of the reaction container; the movable reaction rod is coaxially inserted into the fixed sealing cylinder to extend into the reaction container; the movable reaction rod is a hollow tube, the upper end of the tube body is a reaction medium inlet, the lower end of the tube body is a closed end, and a plurality of reaction medium outlet holes are evenly distributed on the tube wall of the lower half of the tube body; the movable reaction rod is arranged to slide up and down relative to the fixed sealing cylinder, and the movable reaction rod adjusts the number of outlet holes of the reaction medium outlet hole extending out of the fixed sealing cylinder by sliding up and down relative to the fixed sealing cylinder;

[0005] The inner walls of the upper and lower barrel openings of the fixed sealing cylinder are respectively embedded with an upper sealing part and a lower sealing part, and the outer periphery of the movable reaction rod is embedded with a middle sealing part located above the area where the reaction medium outlet hole is located, and the movable reaction rod is slidably matched with the upper and lower seals of the fixed sealing cylinder through the upper sealing part, the lower sealing part and the middle sealing part; a clamping cavity is formed between the fixed sealing cylinder and the movable reaction rod, and the clamping cavity between the upper sealing part and the lower sealing part is divided into an upper air clamping cavity and a lower liquid clamping cavity by the middle sealing part; the fixed sealing cylinder is provided with an air port corresponding to the upper air clamping cavity, and the pressure P2 in the upper air clamping cavity can be changed by filling and releasing air through the air port;

[0006] The reaction of two or more reaction media in a reaction container includes two states: not changing the pressure P1 in the reaction container and changing the pressure P1 in the reaction container:

[0007] Without changing the pressure P1 in the reaction container, adjusting the pressure P2 in the upper air clamp chamber to be the same as the pressure P1 in the reaction container, so that the movable reaction rod is in a stationary state relative to the fixed sealing cylinder;

[0008] While changing the pressure P1 in the reaction container, the pressure P2 in the upper air clamp chamber is adjusted to be different from the pressure P1 in the reaction container, so that the movable reaction rod moves up and down relative to the fixed sealing tube through the pressure difference, so as to adjust the number of outlet holes of the reaction medium extending out of the fixed sealing tube.

[0009] Furthermore, when two or more reaction media react in the reaction container to increase the internal pressure P1 thereof, when the pressure P2 in the upper air clamp chamber is greater than the pressure P1 in the reaction container, the movable reaction rod moves downward by the pressure difference, increasing the number of holes through which the reaction medium outlet holes extend out of the fixed sealing tube; when the pressure P2 in the upper air clamp chamber is less than the pressure P1 in the reaction container, the movable reaction rod moves upward by the pressure difference, reducing the number of holes through which the reaction medium outlet holes extend out of the fixed sealing tube;

[0010] When two or more reaction media react in the reaction container to reduce the internal pressure P1, when the pressure P2 in the upper air clamp cavity is greater than the pressure P1 in the reaction container, the movable reaction rod moves downward due to the pressure difference, increasing the number of reaction medium outlet holes extending out of the fixed sealing tube; when the pressure P2 in the upper air clamp cavity is less than the pressure P1 in the reaction container, the movable reaction rod moves upward due to the pressure difference, reducing the number of reaction medium outlet holes extending out of the fixed sealing tube.

[0011] Furthermore, the reaction medium outlet holes are distributed linearly in the axial direction of the movable reaction rod and in a circumferential array in the circumferential direction of the movable reaction rod.

[0012] Furthermore, the reaction medium inlet of the movable reaction rod is connected to a soft connection through an interface, the initial end of the soft connection is connected to a reaction medium supply source, and a reaction medium supply power unit is arranged on the soft connection. The reaction medium flow rate of the reaction medium supply power unit is controlled to keep the pressure of the reaction medium in the movable reaction rod stable.

[0013] Furthermore, the closed end of the movable reaction rod is provided with a resistance reducing structure, and the resistance reducing structure is in a structural shape of gradually shrinking with decreasing height from the edge of the movable reaction rod to the central axis.

[0014] Furthermore, the air port of the fixed sealing cylinder is connected to an air guide line through a pressure-maintaining valve, and the initial end of the air guide line is connected to an air charging and discharging device; the upper air clamp cavity can achieve a constant internal pressure P2 in a closed state through the pressure-maintaining valve.

[0015] Furthermore, the fixed sealing cylinder has a threaded connection portion, the fixed sealing cylinder is installed on the reaction container through the threaded connection portion, and a sealing structure portion is extruded between the threaded connection portion and the top of the reaction container, and the mouth of the reaction container is filled with the threaded connection portion and sealed by the sealing structure portion so that the reaction container is kept in a closed state.

[0016] Furthermore, the fixed sealing cylinder is provided with a first sensor for correspondingly detecting the pressure P2 in the upper air clamp cavity, and the reaction container is provided with a second sensor for detecting the internal pressure P1 thereof.

[0017] Beneficial effects: The present invention drives the movement of the movable reaction rod through the pressure difference between the reaction container and the upper air clamp chamber to adjust the number of outlet holes of the reaction medium extending out of the fixed sealing tube, thereby adjusting the flow rate of the reaction medium injected into the reaction container, and finally effectively controlling the reaction progress of the reaction medium in the closed space, reducing the liquid level fluctuation, and effectively avoiding the measurement error caused by the medium liquid level fluctuation, while eliminating the potential hidden dangers of fire, explosion, secondary decomposition reaction, etc., thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a structural schematic diagram of a fixed sealing cylinder and a movable reaction rod;

[0020] Figure 3 It is a schematic diagram of the structure of the reaction container when it is cut open. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] like Figure 1 , Figure 2 as well as Figure 3As shown, a reaction medium reaction speed control system in a closed space comprises a reaction container 1, a fixed sealing tube 2 and a movable reaction rod 3; the fixed sealing tube 2 is arranged through the top of the reaction container 1; the movable reaction rod 3 is coaxially inserted into the fixed sealing tube 2 to extend into the reaction container 1; the movable reaction rod 3 is a hollow tube, the upper end of the tube body is a reaction medium inlet 3a, the lower end of the tube body is a closed end, and a plurality of reaction medium outlet holes 3b are evenly distributed on the tube wall of the lower half of the tube body; the movable reaction rod 3 is arranged to slide up and down relative to the fixed sealing tube 2, and the movable reaction rod 3 adjusts the number of outlet holes of the reaction medium outlet holes 3b extending out of the fixed sealing tube 2 by sliding up and down relative to the fixed sealing tube 2. The inner walls of the upper and lower tube openings of the fixed sealing tube 2 are respectively embedded with an upper sealing part 4 and a lower sealing part 5, and the outer periphery of the movable reaction rod 3 is embedded with a middle sealing part 6 located above the area where the reaction medium outlet hole 3b is located. The movable reaction rod 3 is slidably matched with the upper and lower seals of the fixed sealing tube 2 through the upper sealing part 4, the lower sealing part 5 and the middle sealing part 6; a clamping cavity is formed between the fixed sealing tube 2 and the movable reaction rod 3, and the clamping cavity between the upper sealing part 4 and the lower sealing part 5 is separated by the middle sealing part 6 to form an upper gas clamping cavity 30 and a lower liquid clamping cavity 40; the fixed sealing tube 2 is provided with an air port 8 corresponding to the upper gas clamping cavity 30, and the pressure P2 in the upper gas clamping cavity 30 can be changed by filling and releasing air through the air port 8.

[0023] The reaction of two or more reaction media in the reaction container 1 includes two states: not changing the pressure P1 in the reaction container 1 and changing the pressure P1 in the reaction container 1:

[0024] Without changing the pressure P1 in the reaction vessel 1, the pressure P2 in the upper air clamp chamber 30 is adjusted to be the same as the pressure P1 in the reaction vessel 1, so that the movable reaction rod 3 is in a stationary state relative to the fixed sealing tube 2, which means that the pressure P1 in the reaction vessel 1 is unchanged, indicating that the reaction degree of the reaction medium in the reaction vessel 1 is not violent. At this time, the number of outlet holes 3b of the reaction medium extending out of the fixed sealing tube 2 is just right, and there is no need to adjust the number of outlet holes. Under the state of changing the pressure P1 in the reaction vessel 1, the pressure P2 in the upper air clamp chamber 30 is adjusted to be different from the pressure P1 in the reaction vessel 1, so that the movable reaction rod 3 moves up and down relative to the fixed sealing tube 2 through the pressure difference to adjust the number of outlet holes of the reaction medium 3b extending out of the fixed sealing tube 2, which means: the pressure P1 in the reaction vessel 1 is in a changing state, indicating that the reaction degree of the reaction medium in the reaction vessel 1 is relatively violent. At this time, the number of outlet holes of the reaction medium 3b extending out of the fixed sealing tube 2 should be adjusted, specifically, the number of outlet holes is reduced to reduce the flow rate of the reaction medium injected into the reaction vessel 1, thereby alleviating the intensity of the reaction and obtaining effective control. Therefore, the present invention drives the movable reaction rod 3 to move by the pressure difference between the reaction vessel 1 and the upper air clamp chamber 7 to adjust the number of outlet holes of the reaction medium outlet hole 3b extending out of the fixed sealing tube 2, thereby realizing the flow regulation of the reaction medium injected into the reaction vessel 1, and finally realizing the effective control of the reaction progress of the reaction medium in the closed space, reducing the liquid level fluctuation, effectively avoiding the measurement error caused by the medium liquid level fluctuation, and eliminating the potential fire, explosion, secondary decomposition reaction and other hidden dangers, thereby improving safety. In addition, the flow regulation of the reaction medium of the present invention is not disorderly regulation, but adaptive regulation according to the change of the pressure P1 in the reaction vessel 1, which further stabilizes the fluctuation degree of the reaction medium liquid level, reduces the measurement error and ensures higher safety.

[0025] The change of the pressure P1 in the reaction container 1 is caused by the reaction medium, and the change of the pressure P2 in the upper gas clamp chamber 30 is actively adjusted according to the change of the pressure P1. The purpose of adjusting the number of holes is to adjust the flow rate of the reaction medium. The specific adjustment has a strong correlation with the pressure P1 in the reaction container 1, which can be roughly divided into the following two situations:

[0026] The first case: when two or more reaction media react in the reaction vessel 1 to increase its internal pressure P1, when the pressure P2 in the upper air clamp chamber 30 is greater than the pressure P1 in the reaction vessel 1, the movable reaction rod 3 moves downward due to the pressure difference, and increases the number of reaction medium outlet holes 3b extending out of the fixed sealing tube 2, thereby increasing the flow rate of the reaction medium; when the pressure P2 in the upper air clamp chamber 30 is less than the pressure P1 in the reaction vessel 1, the movable reaction rod 3 moves upward due to the pressure difference, and reduces the number of reaction medium outlet holes 3b extending out of the fixed sealing tube 2, thereby reducing the flow rate of the reaction medium.

[0027] The second situation: when two or more reaction media react in the reaction container 1 to reduce its internal pressure P1, when the pressure P2 in the upper air clamp chamber 30 is greater than the pressure P1 in the reaction container 1, the movable reaction rod 3 moves downward due to the pressure difference, and increases the number of reaction medium outlet holes 3b extending out of the fixed sealing tube 2, thereby increasing the flow rate of the reaction medium; when the pressure P2 in the upper air clamp chamber 30 is less than the pressure P1 in the reaction container 1, the movable reaction rod 3 moves upward due to the pressure difference, and reduces the number of reaction medium outlet holes 3b extending out of the fixed sealing tube 2, thereby reducing the flow rate of the reaction medium.

[0028] In order to further control the accuracy of reaction medium flow control, such as Figure 2 As shown, the reaction medium outlet holes 3 b are distributed linearly in the axial direction of the movable reaction rod 3 , and are distributed in a circular array in the circumferential direction of the movable reaction rod 3 .

[0029] like Figure 1 As shown, the reaction medium inlet 3a of the movable reaction rod 3 is connected to a soft connection 10 through an interface 9, the initial end of the soft connection 10 is connected to a reaction medium supply source 11, and a reaction medium supply power unit 11 is arranged on the soft connection 10. The reaction medium flow rate of the reaction medium supply power unit 11 is controlled to keep the pressure of the reaction medium in the movable reaction rod 3 stable. The soft connection 10 is a hose, and the reaction medium supply power unit 11 can be a peristaltic pump.

[0030] In order to reduce the resistance of the movable reaction rod 3 when it moves downward, improve the accuracy of adjusting the number of holes, and thus ensure the accuracy of adjusting the flow rate of the reaction medium, as shown in FIG. Figure 2 or Figure 3 As shown, the closed end of the movable reaction rod 3 is provided with a resistance reducing structure 12, and the resistance reducing structure 12 is in a structure shape that gradually decreases in height from the edge of the movable reaction rod 3 to the central axis, thereby reducing resistance, avoiding the influence of irrelevant factors, and achieving more accurate flow regulation.

[0031] like Figure 1 As shown, the air port 8 of the fixed sealing cylinder 2 is connected to an air guide line 14 through a pressure-maintaining valve 13, and the initial end of the air guide line 14 is connected to an air charging and discharging device 15; the upper air clamp cavity 30 can achieve a constant internal pressure P2 in a closed state through the pressure-maintaining valve 13, and the pressure-maintaining valve 13 selects an electric valve.

[0032] The fixed sealing tube 2 has a threaded connection portion 16, and the fixed sealing tube 2 is installed on the reaction vessel 1 through the threaded connection portion 16, and a sealing structure portion 17 is squeezed between the threaded connection portion 16 and the top of the reaction vessel 1. The mouth of the reaction vessel 1 is filled with the threaded connection portion 16 and sealed by the sealing structure portion 17 so that the reaction vessel 1 is kept in a closed state.

[0033] In the present invention, the upper sealing part 4, the lower sealing part 5 and the middle sealing part 6 are made of sealing rings, and the sealing structure part 17 is made of sealing gaskets.

[0034] The fixed sealing cylinder 2 is provided with a first sensor 18 for detecting the pressure P2 in the upper air clamp chamber 30 , and the reaction container 1 is provided with a second sensor 19 for detecting the internal pressure P1 thereof.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A reaction medium reaction speed control system in a closed space, characterized in that: The invention comprises a reaction container (1), a fixed sealing cylinder (2) and a movable reaction rod (3); the fixed sealing cylinder (2) is arranged to penetrate the top of the reaction container (1); the movable reaction rod (3) is coaxially inserted into the fixed sealing cylinder (2) to extend into the reaction container (1); the movable reaction rod (3) is in the shape of a hollow tube, the upper end of the tube body is a reaction medium inlet (3a), the lower end of the tube body is a closed end, and a plurality of reaction medium outlet holes (3b) are evenly distributed on the tube wall of the lower half of the tube body; the movable reaction rod (3) is arranged to slide up and down relative to the fixed sealing cylinder (2), and the movable reaction rod (3) adjusts the number of outlet holes of the reaction medium outlet hole (3b) extending out of the fixed sealing cylinder (2) by sliding up and down relative to the fixed sealing cylinder (2); The inner walls of the upper and lower barrel openings of the fixed sealing cylinder (2) are respectively embedded with an upper sealing portion (4) and a lower sealing portion (5); the outer periphery of the movable reaction rod (3) is embedded with a middle sealing portion (6) located above the area where the reaction medium outlet hole (3b) is located; the movable reaction rod (3) is slidably matched with the upper and lower sealing portions of the fixed sealing cylinder (2) through the upper sealing portion (4), the lower sealing portion (5) and the middle sealing portion (6); a clamping cavity is formed between the fixed sealing cylinder (2) and the movable reaction rod (3); the clamping cavity between the upper sealing portion (4) and the lower sealing portion (5) is divided into an upper gas clamping cavity (30) and a lower liquid clamping cavity (40) by the middle sealing portion (6); the fixed sealing cylinder (2) is provided with an air port (8) corresponding to the upper gas clamping cavity (30); the pressure P2 in the upper gas clamping cavity (30) can be changed by filling and releasing air through the air port (8); The reaction of two or more reaction media in the reaction container (1) includes two states: the pressure P1 in the reaction container (1) is not changed and the pressure P1 in the reaction container (1) is changed: Without changing the pressure P1 in the reaction container (1), adjusting the pressure P2 in the upper air clamp chamber (30) to be the same as the pressure P1 in the reaction container (1), so that the movable reaction rod (3) is in a stationary state relative to the fixed sealing cylinder (2); While the pressure P1 in the reaction container (1) is changed, the pressure P2 in the upper air clamp chamber (30) is adjusted to be different from the pressure P1 in the reaction container (1), so that the movable reaction rod (3) moves up and down relative to the fixed sealing tube (2) due to the pressure difference, thereby adjusting the number of outlet holes of the reaction medium outlet hole (3b) extending out of the fixed sealing tube (2).

2. A closed space reaction medium reaction speed control system according to claim 1, characterized in that: When two or more reaction media react in the reaction container (1) to increase the internal pressure P1 thereof, when the pressure P2 in the upper air clamp chamber (30) is greater than the pressure P1 in the reaction container (1), the movable reaction rod (3) moves downward due to the pressure difference, thereby increasing the number of holes through which the reaction medium outlet holes (3b) extend out of the fixed sealing tube (2); when the pressure P2 in the upper air clamp chamber (30) is less than the pressure P1 in the reaction container (1), the movable reaction rod (3) moves upward due to the pressure difference, thereby reducing the number of holes through which the reaction medium outlet holes (3b) extend out of the fixed sealing tube (2); When two or more reaction media react in a reaction container (1) to reduce the internal pressure P1 thereof, when the pressure P2 in the upper air clamp chamber (30) is greater than the pressure P1 in the reaction container (1), the movable reaction rod (3) moves downward due to the pressure difference, thereby increasing the number of outlet holes through which the reaction medium outlet holes (3b) extend out of the fixed sealing tube (2); and when the pressure P2 in the upper air clamp chamber (30) is less than the pressure P1 in the reaction container (1), the movable reaction rod (3) moves upward due to the pressure difference, thereby reducing the number of outlet holes through which the reaction medium outlet holes (3b) extend out of the fixed sealing tube (2).

3. A closed space reaction medium reaction speed control system according to claim 1, characterized in that: The reaction medium outlet holes (3b) are distributed linearly in the axial direction of the movable reaction rod (3), and are distributed in a circular array in the circumferential direction of the movable reaction rod (3).

4. A closed space reaction medium reaction speed control system according to claim 1, characterized in that: The reaction medium inlet (3a) of the movable reaction rod (3) is connected to a flexible connection (10) via an interface (9); an initial end of the flexible connection (10) is connected to a reaction medium supply source (11); a reaction medium supply power unit (20) is arranged on the flexible connection (10); and the pressure of the reaction medium in the movable reaction rod (3) is kept stable by controlling the reaction medium flow rate of the reaction medium supply power unit (20).

5. A closed space reaction medium reaction speed control system according to claim 1, characterized in that: The closed end of the movable reaction rod (3) is provided with a resistance reduction structure (12), and the resistance reduction structure (12) is in a structural shape in which the height decreases and gradually contracts from the edge of the movable reaction rod (3) to the central axis.

6. A closed space reaction medium reaction speed control system according to claim 1, characterized in that: The air port (8) of the fixed sealing cylinder (2) is connected to an air guide line (14) via a pressure-maintaining valve (13), and the initial end of the air guide line (14) is connected to an air filling and deflation device (15); the upper air clamp chamber (30) can achieve a constant internal pressure P2 in a closed state through the pressure-maintaining valve (13).

7. A closed space reaction medium reaction speed control system according to claim 6, characterized in that: The fixed sealing cylinder (2) has a threaded connection portion (16), and the fixed sealing cylinder (2) is installed on the reaction container (1) via the threaded connection portion (16). A sealing structure portion (17) is extruded between the threaded connection portion (16) and the top of the reaction container (1). The mouth of the reaction container (1) is filled with the threaded connection portion (16) and sealed by the sealing structure portion (17), so that the reaction container (1) is kept in a closed state.

8. A closed space reaction medium reaction speed control system according to claim 7, characterized in that: The fixed sealing cylinder (2) is provided with a first sensor (18) for detecting the pressure P2 in the upper air clamp chamber (30), and the reaction container (1) is provided with a second sensor (19) for detecting the internal pressure P1 thereof.

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